47 lines
1.1 KiB
Go
47 lines
1.1 KiB
Go
// Copyright (c) 2024-2026 Celestino Amoroso (celestino.amoroso@gmail.com).
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// All rights reserved.
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// operand-dict.go
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package expr
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import (
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"git.portale-stac.it/go-pkg/expr/kern"
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"git.portale-stac.it/go-pkg/expr/scan"
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)
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// -------- dict term
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func newDictTerm(args map[any]*scan.Term) *scan.Term {
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return &scan.Term{
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Tk: *scan.NewValueToken(0, 0, scan.SymDict, "{}", args),
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Parent: nil,
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Children: nil,
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Position: scan.PosLeaf,
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Priority: scan.PriValue,
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EvalFunc: evalDict,
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}
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}
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// -------- dict func
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func evalDict(ctx kern.ExprContext, opTerm *scan.Term) (v any, err error) {
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dict, _ := opTerm.Value().(map[any]*scan.Term)
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items := make(kern.DictType, len(dict))
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for key, tree := range dict {
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var param any
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if param, err = tree.Compute(ctx); err != nil {
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break
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}
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var keyValue any
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if keyValue, err = (key.(*scan.Term)).Compute(ctx); err == nil {
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if kern.IsInteger(keyValue) || kern.IsString(keyValue) {
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items[keyValue] = param
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} else {
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err = key.(*scan.Term).Errorf("dict key can be integer or string, got %s", kern.TypeName(keyValue))
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}
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}
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}
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if err == nil {
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v = &items
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}
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return
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}
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